03-27-2018, 11:20 AM

As to the plugs:
Do not tinker with substitute, even if it is for free
OEM ONLY...remember problems with K&N oil filters...
Do not want to be a smart a** at all, but Honda engineers are not stupid...they know why
"....The CB 1100 takes special one off spark plugs designed for this bike. Made by NGK they carry the designation LMAR8A-9S Honda part number 31908-MGC-003 and takes QTY 4. The bodies on these plugs are extremely thin as are the threads which are also extremely long at 26.5 MM or just over an inch. The plugs are expensive at $19.99..."
...and these plugs carry appropriate price for their design and quality!
Would you replace OEM with Champions ...

I would not ..
pb
